<!DOCTYPE HTML>
<html>
    <head>
        <title>Example</title>
        <style type="text/css">
            :focus{
                border: thin black solid;
                padding: 4px;
            }
        </style>
    </head>
    <body>
        <form>
            Name: <input type="text" name="name"/>
            <p/>
            City: <input type="text" name="city"/>
            <p/>
            <input type="submit"/>
        </form>
    </body>
</html>
